Fluctuating CPU voltages

onx · § #1 11-12-2003, 08:09 PM

I don't know if this applies to the DFI board as well (though I assume so) but there is an article on www.overclockers.com about cooling the voltage regulators, and its effects, which includes stabilizing CPU voltages

Linkage

Quote:

The obvious benefits which I have discovered so far is that the max available CPU voltage went up and that the CPU voltage did stabilize a lot
If your system suffers from a low and/or erratic CPU voltage, then maybe this is something worth looking into
Also the excess heat around the CPU has been significantly reduced

nytmare · § #2 11-12-2003, 08:56 PM

Link is broken for me.

Booster · § #3 11-12-2003, 10:06 PM

Thats a good article! too bad the Lanparty boards aren't so great with the mofsets layout.

Alexia · § #4 11-12-2003, 10:39 PM

I always wondered why motherboards didn't have heatsinks on the voltage regulators. Damn though! 75C to about 35C. I think I'll make a mini block that will fit behind the motherboard without having to cut open the case. Also, use hot glue to cover the solder points.

onx · § #5 11-12-2003, 11:47 PM

Quote:

Originally posted by Alexia on 11-13-2003 at 03:39 AM
I always wondered why motherboards didn't have heatsinks on the voltage regulators. Damn though! 75C to about 35C. I think I'll make a mini block that will fit behind the motherboard without having to cut open the case. Also, use hot glue to cover the solder points.

wouldnt you have problems with the glue melting and re-solidifying often?

if its a lot more effective to cool the reverse of the voltage regulators from the reverse side its too bad motherboard manufactures dont turn them into a mini card or soemthing with HSs on them, seems it might save space and deliver better voltages...

Booster · § #6 11-13-2003, 12:59 AM

No wonder gigabyte went ahead to have a seprate card.

Angry_Games · § #7 11-13-2003, 03:01 AM

i remember that gigabyte card being a big hunk of doodoo too...

onx · § #8 11-13-2003, 03:13 AM

yeah but wasnt that cause they only added to it? and didnt keep the whole thing on the card? the card was just an addition, another filter i thought?

Booster · § #9 11-13-2003, 03:24 AM

Dual Power System (DPS)
With the Voltage Regulator Module (VRM), the Dual Power System delivers a total of 6-phase power circuit design to provide more solid and durable power supply for the new generation AMD platform

onx · § #10 11-13-2003, 03:39 AM

6-phase power circuit design...doesnt that just mean that they clean and adjust the voltage 6 ways/times?

Booster · § #11 11-13-2003, 03:42 AM

I guess I was wrong about that cooling thingy, I thought it was there to help cool them, I guess it does but not directly.

onx · § #12 11-13-2003, 03:46 AM

yeah i was thinking more along the lines of making all the voltage regulators on the lil card and cooling the card, not just the extra 2 phases....that was the failure of that card, it only added 2 fases, didnt help cool it all methinks

dont p4s require the 6phases but athlons only require 4?

Alexia · § #13 11-14-2003, 02:22 AM

Just realized, my old Antec case has a cut out in the motherboard try right where the voltage regulators are on the motherboard. (Perfect placement for a NF7-S.) Good design on Antex's part. Another interseting tidbit, the old Pentium 2 motherboard I'm selling has passive heatsinks on the voltage regulators. All my newer higher performance boards, do not.

onx · § #14 11-14-2003, 02:46 AM

lol nice

im gettin into watercooling and waterblock design, so im prolly gonna wc my sooner or later...wonder how that will effect it on the dfi board...

drgreenthumb · § #15 11-14-2003, 03:09 AM

Most athlon boards are either 2 phase or 3-phase, the DFI LP NFII is a 3-phase design. Count the number of MOSFETS and divide by 2.